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Previously, Arnold was Chairman and CEO of HowStuffWorks.com, an award-winning online resource used by millions of people each month, which he sold to Discovery Communications, where he served as Chief Digital Strategy Officer, and Chief Architect of The Curiosity Project until December 2011.
In 1998, he founded and served as CEO of WebMD, the first healthcare company to harness the power of the Internet to create a destination for consumers, healthcare institutions and physicians to find trustworthy medical information.
He was inducted into the Honor Society of Nursing, Sigma Theta Tau International, as an Honorary Member in recognition of his superior achievements and contributions to the advancement of nursing and health care on both a national and global level. Arnold also has been honored by the World Economic Forum; inducted into the Technology Hall of Fame of Georgia; named Entrepreneur of the Year, Southeast Region by Ernst & Young; and received the prestigious Phoenix Award, which recognizes companies and individuals who embody strength, tenacity and leadership in Georgia’s healthcare information technology industry.
Currently chairman of Forbes Travel Guide, Arnold also has served on numerous boards for public, private and charitable organizations over the years.